Combination portable rope hoist.



APPLICATION FILED MAR- 4 I9I5.

Patented Sept. 14, 1915..

2 SHEETS-SHEET I.

coLumulA PLANOGRIAPH 60.,WASHINUTON. D-C.

S. E. KALBACH. COMBINATION PORTABLE ROPE HOIST.

APPLICATION FILED MAR- 4. I915.

5 m 2 t 4 m S m 2. a P a \w w.\ .3 Q5 sq m y W N 1 m, R M S V 9 3 5 Q 1 WITNESSES A'I'TORN EY COLUMBIA PMNOGRAPH 60-, WASHINGTON, D. c.

. Combination Portable man srArns rA orrion SAMUEL EDWARD KALBACIi-OF READING, PENNSYLVANIA, ASSIGNOR 'ro READING CRANE AND HOIS'I wonKs, or READING, PENNSYLVANIA.

COMBINATION PORTABLE ROPE H OI ST.

To all whom it may concern:

Be it known] that I, SAMUEL EDWARD KALBACH, a citizen of the United States, residing at Reading, in the county of Berks and State of Pennsylvania, have invented certain new and useful Improvements in Rope; Hoists, of which-the followingfiisa specification.

This invention relates to improvements in hoists and it applies more particularly to what is termed a combination portable rope hoist, that is, a portable hoist in which a rope and its winding drum are employed, and which may be operated either by. hand power :or motor without the removal "of any parts.

The object in the present instance is to provide a simple, light portable hoist whose lifting capacity, relative to the Weight of the hoist, is the maximum, one which can be constructed with a minimum cost, and

' one which may be operated either by a hand chain wheel or through the medium of a motor connected to the power shaft of the winding or hoisting gears. V

The invention consists in PlOVJdlIlg a deviee of the character described with a set of hoisting gears located within the hoistingdru'm and through the medium of which rotation is transmitted' to the drum, and combination hand and motor power .means for operating said gears for hoisting.

Briefly stated, the invention contemplates a light, portable,-ropehoist capable of use either by hand power or electric motor, in which the entire hoisting apparatusis confined within the hoisting drum.

The invention is more fully described in the following specification and clearly illustrated in the accompanying l drawings, 'in i which Figure 1 is a front elevational view of my hoist. Fig. 2 is a transverse sectional view through Fig. 1 on the line A-A.

In the drawing the numeral 1 designates a supporting hook by means of which the hoist may be suspended from any suitable support. This hook is attached to the hous- Specification of Letters Patent.

Application filed March 4, 1915.

Patented Sept. 14, 1915.

Serial N 0. 11,973.

ment with the article to be raised or low ered by the hoist.

The numeral 10 designates the power shaft; this shaft carries on its inner end, a plnion l2 and the shaft is mounted in a yoke 3. This yoke 13, together with a like or duplicate member, is mounted on the inner face of one of the housing plates let, and a pair ofstuds 15 pass through both of said plates and both yokes 13 and hold the parts named in relative position. The drum 3 is mounted on these yokes and rotates thereon, the one end of the drum 'beirrg open, is provided with a closure plate 18 and this plate, as well :as the opposite end of the drum is journaled on the yokes 1-3 .and these journals are each provided with suitable tearin-gs 17 which may preferably be secured to the drum and irotatewith it, while its inner surface bears on the periphery of the yoke. The. studs .15 in addition to holding the yokes, serve also as bearings for the' train of hoisting gears whereby power is transmitted from the :p'owersha'ft to the hoisting drum. Thi'strain of gears comprises a double gear 20 which meshes with the pinion 12 on the power shaft, through the teeth on its greater diameter, while the teeth on its smaller diameter mesh with a second double gear 22, which is mounted on the opposite stud 15, and whose-smaller diameter in turn meshes with "a single rgear wheel 25 "on the first named stud. This single gear whet-$125 in turn meshes with :a toothed wing 26 "which is secured to the inner wall of the -winding drum by means of screws 28 and which rotates with said drum.

@ne end of the power shaft 10 projects from the housing and is provided with a gear wheel 6, which is in mesh with a gear wheel 9 mounted on the side of the housing.

This latter gear wheel 9 carries a hand chain wheel 40, and through this wheel, when rotated in the usual manner by a chain running over its grooved periphery, power is transmitted through the power shaft 10 to the train of hoisting gears and the drum.

The interiorly toothed ring 26 fits snugly inside the drum, and when worn or broken may be readily removed and replaced by means of the screws 28. The closure plate 18 for the open end of the drum is secured in position thereon by means of studs 30, and when in position, serves to hold the gears against lateral movement on studs. The

drum being thus securely closed, serves as a receptacle for the lubricant for the gears, whioh'lubricant may be entered through the opening 31. It is evident that by thus housing the entire hoisting mechanism within the are each provided with a bearing sleeveadapted to rotate with the gears, so that the 7 only rotatable parts 7 are the gear wheels and the drum.

The numeral designates an electric motor, secured to the housing and 51 the motor shaft. This shaft carries a gear wheel 52 at its extremity which is in mesh with the gear Wheel 9, so that, when it is desired to operate the hoist by motor power nothing need be disconnected, as the hand chain wheel will merely run idle, even though the chain be not removed therefrom. The motor is provided with a suitable brake 55, and when'the hoist is operated by hand, through the hand chain wheel, the motor will run idle, but the adjustment screws 56 on the brake may be released to permit its free rotation.

The numeral 60 designates a controller of well known form, attached to the housing opposite the motor and connected therewith by the rod 61.

. The gearing on'the power shaft and hand chain wheel are housed and protected in a casing attached to the side plate of the drum housing.

Having thus described my invention, I claim 1. In a device of the character described, the combination of a hollow winding drum, a closure plate for one end of said drum, said drum and plate having j ournaled bearings, a housing for said drum, yokes within the housing on which the drum is rotatably mounted, studs passing through the'housing and the yokes, a removable, interiorly toothed ring secured to the inner surfacev of Oopie: of this patent may he obtained for the drum,a set of gears mounted on the studs and meshing with the toothed ring, a power shaft'mounted in one of the yokes a pinion on said shaft and meshing with the V tram of gears, a gear wheel on the opposite end of the power shaft, and means including ahand chain wheel and a motor for trans-.7

mitting power through the power shaft to the drum.

2. The combination of a hollow, eXteriorly V grooved, open ended hoisting drum, a' housmg therefor, bearings w1th1n the housing on which the drum rotates, a power shaft train of gears,a gear wheel on the outer end 3 of the power shaft, a motor carried by the housing, a gear wheel on the motor shaft, an intermediate gear wheel meshing with the power shaft gear and the motor shaft gear, and a hand chain wheel carried by said v intermediate gear, whereby said drum may be rotated either by hand power through the hand chain wheel or by motor throughthe intermediate gear.

3. The combination'of a hollowhoisting V drum, a housing in which the drum is rotatably mounted, a. train of gears mounted within the drum and in gear with the interior wall thereof, a power shaft, a pinion on said power shaft in mesh with the train of gears, a motor-carried by the housing, a motor shaft, a gear on the motor shaft, gears for transmitting power from the motor shaft to the power shaft and hand operated means for rotating the power shaft inde-- V pendently of the motor. 7 V

'In testimony whereof I afiix my signature in presence of two witnesses."

SAMUEL EDWARD K LBiicn. g

' Witnesses:

ED. A. KELLY, V CLARA VE..'YOUING.I

five cents each, by addressing the Commissioner of Patents,

Washington, D. 0. i 

